Gemmology
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Charoite — specimen 0530, photo © NMNHS
Charoite — specimen 0530, photo © NMNHS

Charoitespecimen 0530

Origin

North Asia
Russia, Far Eastern District, Sakha Republic, Aldan Shield, Murunskii Massif
Charoite — specimen 0530, locality map
Data

Weight: 2.01 ct; size: 12.20 | 7.26 | 2.70 mm; shape: octagon; colour: medium dark bluish violet; very slightly greyish; clarity: opaque; cut: excellent; treatment: none.
Notes

Clean specimen; design ‘Octaelongatis Cab’, excellent cut by Tan Pen.

More information from ‘Classification’


In potassic feldspar metasomatites at the contact of nepheline and aegirine syenites with limestones (Anthony et al., 2001—2005).